CONFIG_OMAP_MUX is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

OMAP multiplexing support

configname: CONFIG_OMAP_MUX

Linux Kernel Configuration
└─>TI OMAP Implementations
└─>OMAP multiplexing support
In linux kernel since version 2.6.12  
Pin multiplexing support for OMAP boards. If your bootloader
sets the multiplexing correctly, say N. Otherwise, or if unsure,
say Y.


is depended by
CONFIG_MACH_DEVKIT8000